where \(N_{i}\)  and \(\varepsilon _{i}\)  represent the yield and corresponding detection efficiency. The integrated luminosity \(\mathcal {L}_{\textrm {int}}\)  is taken from Ref. [1]}, [2]}. The vacuum polarization (VP) correction factor \(f_{\textrm {VP}}\)  is calculated to be 1.055 at all four CM energies [3]}. The \(BR_{i}\)  represents the product of branching fractions of the \(i\) -th \(\Lambda _{c}\)  decay mode and its subsequent decay(s). The \(f_{\textrm {ISR}}\)  is the ISR correction factor derived in Ref. [4]} and implemented in kkmc. Since the calculation of \(f_{\textrm {ISR}}\)  requires the cross section line-shape as input, an iterative procedure has been performed.
<TABLE>